[PATCH] Maybe fix PR87134
Gerald Pfeifer
gerald@pfeifer.com
Thu Sep 6 16:25:00 GMT 2018
On Wed, 5 Sep 2018, Richard Biener wrote:
> So I'm testing the following then, leaving the placement new untouched
> (no init is fine) and then assign from vNULL.
>
> 2018-09-05 Richard Biener <rguenther@suse.de>
>
> PR bootstrap/87134
> * tree-ssa-sccvn.c (rpo_elim::eliminate_push_avail): Make sure
> to zero-init the emplaced vec.
Unfortunately it does not fix the build on i586-unknown-freebsd10.4.
(Yes, I am trying various things to nail this one down and provide
more input or make it reproducible for you, alas without success so
far.)
Some things I found is that
- building for i686-unknown-freebsd10.4 instead of
i586-unknown-freebsd10.4 does not make a difference.
(I tried, since Jeff referred to successful i686 builds).
- not just builds with the system compiler (clang 3.4.1) fail,
but also those with GCC mainline from 20180827 do -- with the
same failure mode.
Gerald
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